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Versions: 10
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Contents
module Locomotive
module Plugin
module Liquid
# @api internal
#
# Adds the plugin object to the liquid context.
module ContextHelpers
# Adds the plugin object to the liquid context object to be used by
# tags, filters, and drops. This method looks in the +:site+ register
# for an object which responds to +#plugin_object_for_id+ in order to
# populate the +:plugin_object+ register. If such an object does not
# exist, the method simply yields without altering the context object.
# Otherwise, after yielding, the context object is reset to its
# previous state.
#
# @param plugin_id [String] the plugin id to use
# @param context [Liquid::Context] the liquid context object
def self.add_plugin_object_to_context(plugin_id, context)
site = self.fetch_site(context)
if site
old = context.registers[:plugin_object]
obj = site.plugin_object_for_id(plugin_id)
context.registers[:plugin_object] = obj
yield
context.registers[:plugin_object] = old
else
yield
end
end
protected
# Fetch the site from the context assuming it exists and responds to
# the +#plugin_object_for_id+ method.
#
# @param context [Liquid::Context] the liquid context object
# @return the site object or +nil+
def self.fetch_site(context)
site = context.registers[:site]
site if site.respond_to?(:plugin_object_for_id)
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems